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Stockholders' Equity - Summary of Outstanding RSUs (Details) - Restricted Stock and Restricted Stock Units (RSUs) - Performance-based RSUs
3 Months Ended
Mar. 31, 2020
$ / shares
shares
Shares  
Beginning Balance (shares) | shares 419,426
Granted (shares) | shares 531,170
Vested (shares) | shares (8,106)
Forfeited (shares) | shares (34,088)
Ending Balance (shares) | shares 908,402
Weighted- Average Grant Date Fair Value  
Beginning Balance (usd per share) | $ / shares $ 14.00
Granted (usd per share) | $ / shares 12.20
Vested (usd per share) | $ / shares 13.26
Forfeited (usd per share) | $ / shares 11.97
Ending Balance (usd per share) | $ / shares $ 13.03